Observer‐based event‐triggered secure synchronization control for multi‐agent systems under false data injection attacks

Abstract

In this article, the observer-based event-triggered robust secure synchronization control problem is studied for multi-agent systems (MASs) under a directed graph and false data injection (FDI) attacks. During the information transmission, both control signals and measurement signals may be changed by false data, and the Bernoulli processes are used to describe FDI attacks that occur randomly on the sensor-to-controller and the controller-to-actuator transmission channels. A new event-triggered mechanism with the state estimation threshold is introduced to reduce the waste of network resources. Based on which, a resilient observer-based control scheme is proposed to solve the secure mean-square bounded synchronization problem of MASs caused by FDI attacks.The controller gain and observer gain are designed by utilizing the linear matrix inequality technique. Furthermore, the Zeno behavior is effectively eliminated and proved by using a contradiction method. Finally, a simulation result is presented to illustrate the effectiveness and applicability of the theoretical results by comparisons.

Observer‐based security control for distributed cyber‐physical systems under replay attacks

“…Remark Over the past years, the consensus problem of distributed CPSs has been investigated over an infinite‐horizon in References 18 and 27. For time‐varying distributed CPSs addressed in this paper, it makes sense to deal with the finite‐horizon $$$ {H}_{\infty } $$$ consensus problem for distributed CPSs with hope to mitigate the effect from disturbances over a finite horizon.…”

“…14 In this case, considerable research efforts have been made on developing efficient control and filtering algorithms for CPSs against deception attacks. [15][16][17][18][19] Note that, replay attack, as one specific type of deception attack is more common and easier to implement. So far, only a few results have investigated the security control problem of replay attacks due to the difficulty in modeling replay attacks.…”

“…Compared with DoS attacks, deception attacks are more dangerous and bring more security problems 14 . In this case, considerable research efforts have been made on developing efficient control and filtering algorithms for CPSs against deception attacks 15‐19 . Note that, replay attack, as one specific type of deception attack is more common and easier to implement.…”

Distributed prescribed‐time leader‐following formation control for second‐order multi‐agent systems with mismatched disturbances

“…Thus, it is significant to investigate the nonsingular prescribed-time leader-following formation control problem because there always exist measurement errors in the onboard measuring elements of the agents. 26 As an effective way to deal with system uncertainties and external disturbances, sliding mode control (SMC) has been widely studied and highly evaluated over the past few decades. 27 The existing advanced SMC methods can be mainly classified into three categories: TSMC, 28,29 dynamic SMC (DSMC), 30 and integral SMC (ISMC).…”

“…If the controllers utilize the gain that grows unbounded, the singularity‐like problem may arise. Thus, it is significant to investigate the nonsingular prescribed‐time leader‐following formation control problem because there always exist measurement errors in the onboard measuring elements of the agents 26 …”